# OGSET vs Span

The clearest difference is rating: Span at 5.0 against OGSET's 1.0. Span also leads on update cadence (daily vs every 2 months). OGSET's advantage is in-app purchases (none vs 4) and device support (3 vs 1). On price, ratings volume and ads there is nothing between them.

Both are free to download. Span sells 4 in-app purchases, starting at $4.99 per 7 days. OGSET asks for nothing beyond the download.

Span holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

OGSET ships an update every 2 months, Span daily. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OGSET | Span |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ogset/id6469603307/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/span-attention-span-test/id6820343261/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Freemium |
| Size | 41 MB | 55 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Alaa Emam](https://appshunter.io/developer/1712277839) | [Abdullah Almethen](https://appshunter.io/developer/6782874258) |

## What reviewers say

### OGSET

[App page](https://appshunter.io/ios/app/ogset/id6469603307)

This app provides specialized education on oil technology with a unique system that prevents repeated questions. It offers a comprehensive and tailored learning experience to keep users updated with industry advancements.

**Highlights:** Advanced oil technology content, Unique non-repeating question system, Specialized learning approach, Tailored educational journey, Keeps users updated on industry advancements

**Features:** macOS Compatibility

**In-app purchases:** none


### Span

[App page](https://appshunter.io/ios/app/span-attention-span-test/id6820343261)

Test your cognitive abilities with a series of engaging challenges designed to measure reaction time, focus, speed, and memory. Compare your performance to others your age and track your progress through various games and levels.

**Highlights:** 4-minute attention span test, Reaction time, focus, speed, and memory challenges, Compare scores to age group, 21 games with 30 levels each, Multiplayer and local co-op modes, Progress tracking and skill mapping

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Span Plus Weekly | $4.99 | per 7 days |
| Span Plus Annual (offer) | $29.99 | per year |
| Span Plus Annual | $39.99 | per year |
| Span Plus Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is OGSET free?

OGSET is free to download, with no in-app purchases.

### Is Span free?

Span is free to download, with in-app purchases available.

### Which has better reviews, OGSET or Span?

Span is rated higher. OGSET averages 1.0 out of 5 from 1 ratings, while Span averages 5.0 from 1 ratings.

### Do OGSET or Span have ads?

Neither OGSET nor Span shows ads.

### Which is updated more often, OGSET or Span?

OGSET ships an update every 2 months, and Span daily. Most recently, OGSET was updated on October 25, 2026 and Span on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*